Information recording medium and information reproducing apparatus
    53.
    发明授权
    Information recording medium and information reproducing apparatus 失效
    信息记录介质和信息再现装置

    公开(公告)号:US06580677B1

    公开(公告)日:2003-06-17

    申请号:US09486751

    申请日:2000-06-16

    IPC分类号: G11B700

    摘要: There is provided an information recording medium and an information reproducing apparatus capable of carrying out information reproduction and tracking control by utilizing near-field light. A data bit 12 of a convex having a section orthogonal to a tracking direction in a triangular shape is formed on an information recording medium 3 as an information unit, by scattering near-field light formed at a reproducing probe 1 at inclined faces of the data bit 12 with directionalities, fluxes of reflected and scattered light thereby are detected by reproduced light detectors 6 and 7 arranged symmetrically in a left and right direction relative to a central axis of the reproducing probe 1 along the tracking direction, a differential signal between the detected signals is outputted by a difference circuit 20 and an actuator 22 is driven by the differential signal via a tracking signal forming circuit 21 and a position of the reproducing probe 1 is controlled to carry out the tracking control.

    摘要翻译: 提供了一种能够通过利用近场光执行信息再现和跟踪控制的信息记录介质和信息再现装置。 在作为信息单元的信息记录介质3上形成具有与三角形的跟踪方向正交的部分的凸起的数据位12,通过在数据的倾斜面处散射形成在再现探头1处的近场光 具有方向性的位12,由此由跟踪方向相对于再现探头1的中心轴在左右方向上对称布置的再现光检测器6和7检测反射和散射光的通量,检测到的差分信号 信号由差分电路20输出,并且致动器22经由跟踪信号形成电路21由差分信号驱动,并且再现探头1的位置被控制以执行跟踪控制。

    Near-field optical probe
    54.
    发明授权
    Near-field optical probe 有权
    近场光学探头

    公开(公告)号:US06479816B1

    公开(公告)日:2002-11-12

    申请号:US09426532

    申请日:1999-10-26

    IPC分类号: G21K700

    摘要: A near-field optical probe with a resolving power exceeding a diffraction limit of light is provided utilizing near-near-field light. A near-field optical probe is formed by a core and a shading film. The core has a tip surface spotted with inwardly depressed points with respect to the surface. This provides within the tip surface a light intensity distribution in a distributed form instead of a conventional rectangle function. Its Fourier expansion is increased in short-wavelength lattice constant component. Utilizing this component, a near-field optical probe is realized having a resolving power exceeding a diffraction limit of light.

    摘要翻译: 利用近场光提供具有超过光的衍射极限的分辨能力的近场光学探针。 近场光学探针由芯和遮光膜形成。 芯部具有相对于表面具有向内凹陷点的尖端表面。 这在尖端表面内提供分布形式的光强分布,而不是传统的矩形函数。 其傅立叶扩展在短波长晶格常数分量中增加。 利用该部件,实现了具有超过光的衍射极限的分辨能力的近场光学探针。

    Optical switch manufacturing method thereof
    55.
    发明授权
    Optical switch manufacturing method thereof 失效
    光开关制造方法

    公开(公告)号:US06842558B2

    公开(公告)日:2005-01-11

    申请号:US10294833

    申请日:2002-11-14

    IPC分类号: G02B26/08 G02B6/35

    摘要: There is disclosed an optical switch consisting of a support substrate, a movable raw optical fiber, a fixed raw optical fiber, a magnetic member for the movable raw optical fiber, and a leaf spring. The fibers are disposed in a V-shaped groove formed in the substrate. The magnetic member is actuated by an electromagnet disposed above the substrate. The leaf spring pushes the movable raw optical fiber into the V-shaped groove. The structure of the switch is relatively simple. Since the movable raw optical fiber is pushed using the leaf spring, the switch is less affected by the assembly accuracy than conventional. It is easy to make adjustments during assembly. Consequently, high-performance, low-cost, optical switch that can be mass-produced can be offered.

    摘要翻译: 公开了一种由支撑基板,可动原始光纤,固定原始光纤,可动原始光纤的磁性部件和板簧组成的光学开关。 纤维设置在形成在基板中的V形槽中。 磁性构件由设置在基板上方的电磁体驱动。 板簧将可动原料光纤推入V形槽。 交换机的结构比较简单。 由于使用板簧推动可动原始光纤,所以与传统方式相比,开关受组装精度的影响较小。 在组装过程中很容易进行调整。 因此,可以提供可批量生产的高性能,低成本的光开关。

    Near-field optical head
    57.
    发明授权
    Near-field optical head 失效
    近场光学头

    公开(公告)号:US06429419B1

    公开(公告)日:2002-08-06

    申请号:US09423850

    申请日:2000-03-20

    IPC分类号: H01J314

    摘要: A near-field optical head has a tip end having an edge portion defined by two intersecting planes. Information recorded on a recording medium is reproduced in accordance with an intensity of scattered light of an evanescent field generated when the recording medium is illuminated with light and the tip end of the optical head is brought proximate the recording medium at an interval equal to or smaller than a wavelength of light therebetween.

    摘要翻译: 近场光学头具有具有由两个相交平面限定的边缘部分的尖端。 记录在记录介质上的信息根据当用光照射记录介质时产生的ev逝场的散射光的强度被再现,并且光学头的末端以等于或等于的间隔被带到记录介质附近 比它们之间的光波长。

    Information recording apparatus
    58.
    发明授权
    Information recording apparatus 失效
    信息记录装置

    公开(公告)号:US06950385B1

    公开(公告)日:2005-09-27

    申请号:US09601815

    申请日:1999-02-10

    摘要: In an information recording apparatus for recording information onto a recording medium by utilizing a technology in a near-field microscope, the information recording apparatus carries out recording with reliability and density. An optical probe (1) or micro-cantilever (12) utilized in a near-field microscope is used as a recording probe (26). The recording probe (26) at its tip is heated by laser light (28) illumination or heating by an electric heating element to radiate microscopic-region thermal energy through the tip to a recording medium (3). This makes it possible to record microscopically information onto the recording medium (3) that varies in physical properties due to heating. Furthermore, thermal energy is provided to a recording position through an auxiliary heat radiating means thereby enabling recording more positively.

    摘要翻译: 在利用近场显微镜中的技术将信息记录到记录介质上的信息记录装置中,信息记录装置以可靠性和密度进行记录。 使用在近场显微镜中使用的光学探针(1)或微悬臂(12)作为记录探针(26)。 其顶端的记录探针(26)通过激光(28)通过电加热元件的照明或加热来加热,以将通过尖端的微小区域热能辐射到记录介质(3)。 这使得可以将显微镜信息记录在由于加热而在物理性质上变化的记录介质(3)上。 此外,通过辅助散热装置将热能提供给记录位置,从而能够更积极地进行记录。

    Near-field optical probe
    59.
    发明申请
    Near-field optical probe 失效
    近场光学探头

    公开(公告)号:US20050167576A1

    公开(公告)日:2005-08-04

    申请号:US11093618

    申请日:2005-03-30

    摘要: The present invention has an object, in a near-field optical probe having a microscopic aperture to generate and/or scatter a near field, to obtain a near-field optical probe easy to be made in an array which increases the intensity of a near field to be generated and/or scattered and is adapted for use as an optical memory head. This near-field optical probe is arranged with a planar lens having microscopic lens on a flat surface substrate having an inverted conical or pyramidal hole formed therethrough such that its apex is made as the microscopic aperture, wherein a light source is further arranged thereon to introduce light to the planar lens. Because the arrangement is made such that the planar lens has a focal point positioned at the microscopic aperture, the light given by the light source can be efficiently collected to the microscopic aperture. Also, the above structure can be arrayed and mass produced using a silicon process, thus being adapted for use as an optical memory head.

    摘要翻译: 本发明的目的是在具有微小孔径的近场光学探针中产生和/或散射近场,以获得容易制成阵列的近场光学探针,其增加了近场强度 场被生成和/或散射并适于用作光学记忆头。 该近场光学探针被布置成具有微透镜的平面透镜在平面表面基底上,该平面透镜具有穿过其形成的倒锥形或金字塔形孔,使得其顶点形成为微小孔,其中光源还被布置在其上以引入 光到平面透镜。 由于平面透镜具有位于微小孔的焦点的布置,所以可以将由光源所给出的光有效地收集到微孔中。 此外,上述结构可以使用硅工艺排列并批量生产,因此适合用作光学记忆头。